Coffee-roaster



(No Model.)

. W. H. BRUNING.

COFFEE ROASTER. No. 310,027. Patented Dec. ,30, 1884.

WITNESSES INVENTOR W 9%!1/ MW/ ATTORNEYS.

' drawings, forming part of this specification, in v which similar letters of reference indicate cor- UNITED STATES PATENT QEFICE.

\VILLIAM I-I. BRUNING, OF MADISON, INDIANA.

COFFEE-ROASTER.

SPECIFICATION forming part. of Letters Patent; No. 310,027, dated December 30, 1884-.

Application filed March 1S], 1893. Renewed August 19, 1884. (No model.

To (06/, whom, (It 77L6LZ/ concern:

Be it known that I, VVILLIAM H. BRUNING, of Madison, in the county of Jefferson and State of Indiana, have invented a new and Improved Coffee-Roaster, of which the following is a full, clear, and exact description.

The object of the invention is to improve coffee-masters, as hereinafter described, and pointed out in the claims.

Reference is to be had to the accompanying responding parts in both the figures.

Figure 1 is a longitudinal sectional elevation of my improved coffee-roaster, and Fig. 2 is a transverse section of Fig. 1 on the line The shell a of the hollow revolving cylinder may be of the ordinary form, and arranged in the usual way in an iuclosing-case, I), over a tire-grate, c, for heating it; and it may have the ordinary head (2, hollow shaft f, drivingpnlley g, and the removable testing scoop h at one end. The part i of the cylinder, which'is similar to an ordinary coffee-roaster, is where i the coffee or other substance to be roasted is E to be retained while roasting, and it is proi vided with a spiral flange, j. for ejecting the contents when the motion of the cylinder is reversed after the roasting is completed. In t the other section,,7s, of the cylinder, and exf I have arranged the spiral flange Z, attached to the shell a, and another one, m, attached to the shaft 11, to conduct the cot't'ee from the feeding-spout o into part i of the cylinder, or retain it there until the roasting is completed. 1 The motion of the cylinder is then reversed, i

tending a suitable distance from the open end, I

when these flanges, receiving the contents from seotiont' by flange j, will quickly discharge the same into the hopper-bottom p of the smoke-breeching q, to be discharged into any receptacle. The flange 9' is adapted to allow the contents of the cylinder to fall back over it from the closed end of the cylinder, and is used only to effectually discharge the coffee from section '1; to section k. The shaft n is connected to this section 7.: by the two spiderframes .1, attached to the interior of the cylinder. The srnoke-lweeching 1 has a pipeconnection, it, for attaching a pipe to conduct the smoke away.

By the construction of the discharging-hopper and the smoke'breeching in one device theapparatus is simplified, and the opening at the bottom facilitates a draft by which the smoke is efi'ectnall y carried off.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A coffee-roasting cylinder divided into two sections, 7.117, the section k provided with spiral flanges l, and the section -43 having the spiral flange j, in combination with the shaft n, having the spiral flange m whereby the coffee may be conveyed through section k, held and roasted in section 2', and discharged, as described.

2. The combination, with a roasting-cylinder having the spiral fimges l, and the shaft 1 it, having the flange m, of the hopper having the bottom 1), arranged at the end of said cylinder, as shown and described.

3. An open-ended roasting-cylinder provided with a spiral conveyer leading from one end toward the middle, and with spiral flanges adapted to prevent the escape therefrom of the cofi'ce or other article until the cylinders direction of rotation has been reversed, as described.

XVILLIAM H. BRUNING.

Witnesses:

R. M. MILLioAN, LEONARD JoEsT. 

